8 tristate "OMAP2+ Display Subsystem support"
10 select VIDEOMODE_HELPERS
14 OMAP2+ Display Subsystem support.
18 config OMAP2_DSS_DEBUG
22 This enables printing of debug messages. Alternatively, debug messages
23 can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
24 appropriate flags in <debugfs>/dynamic_debug/control.
26 config OMAP2_DSS_DEBUGFS
27 bool "Debugfs filesystem support"
31 This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
32 querying about clock configuration and register configuration of dss,
33 dispc, dsi, hdmi and rfbi.
35 config OMAP2_DSS_COLLECT_IRQ_STATS
36 bool "Collect DSS IRQ statistics"
37 depends on OMAP2_DSS_DEBUGFS
40 Collect DSS IRQ statistics, printable via debugfs.
42 The statistics can be found from
43 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
44 <debugfs>/omapdss/dsi_irq for DSI interrupts.
50 DPI Interface. This is the Parallel Display Interface.
56 OMAP Video Encoder support for S-Video and composite TV-out.
58 config OMAP2_DSS_HDMI_COMMON
62 bool "HDMI support for OMAP4"
64 select OMAP2_DSS_HDMI_COMMON
66 HDMI support for OMAP4 based SoCs.
69 bool "HDMI support for OMAP5"
71 select OMAP2_DSS_HDMI_COMMON
73 HDMI Interface for OMAP5 and similar cores. This adds the High
74 Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI
81 SDI (Serial Display Interface) support.
83 SDI is a high speed one-way display serial bus between the host
84 processor and a display.
90 MIPI DSI (Display Serial Interface) support.
92 DSI is a high speed half-duplex serial interface between the host
93 processor and a peripheral, such as a display or a framebuffer chip.
95 See http://www.mipi.org/ for DSI specifications.
97 config OMAP2_DSS_MIN_FCK_PER_PCK
98 int "Minimum FCK/PCK ratio (for scaling)"
102 This can be used to adjust the minimum FCK/PCK ratio.
104 With this you can make sure that DISPC FCK is at least
105 n x PCK. Video plane scaling requires higher FCK than
108 If this is set to 0, there's no extra constraint on the
109 DISPC FCK. However, the FCK will at minimum be
110 2xPCK (if active matrix) or 3xPCK (if passive matrix).
112 Max FCK is 173MHz, so this doesn't work if your PCK
115 config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
116 bool "Sleep 20ms after VENC reset"
119 There is a 20ms sleep after VENC reset which seemed to fix the
120 reset. The reason for the bug is unclear, and it's also unclear
121 on what platforms this happens.
123 This option enables the sleep, and is enabled by default. You can
124 disable the sleep if it doesn't cause problems on your platform.